NEET PG DENTAL EXAM

HISTOLOGY

INTEGUMENTARY SYSTEM SKIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What type of stimulus?Decreasing body temperature
A
Internal
B
External
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Thermoreceptors detect changes in body temperature. For example, thermoreceptors in your internal organs can detect a lowered body temperature and produce nerve impulses that travel to the control center, the hypothalamus.

Detailed explanation-2: -As the temperature falls lower, random signals to skeletal muscles are triggered, causing them to contract. This causes shivering, which generates a small amount of heat. The thyroid gland may be stimulated by the brain (via the pituitary gland) to secrete more thyroid hormones.

Detailed explanation-3: -If the temperature is too high, the hypothalamus can initiate several processes to lower it. These include increasing the circulation of the blood to the surface of the body to allow for the dissipation of heat through the skin and initiation of sweating to allow evaporation of water on the skin to cool its surface.

Detailed explanation-4: -Temperature, sound, light, and other organisms act as external stimuli and cause different responses in organisms.

There is 1 question to complete.